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Methods and apparatus for alternative mode monitoring

A mode and operation mode technology, applied in the field of communication systems, which can solve problems such as finding suitable time periods

Inactive Publication Date: 2005-02-23
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Either of these reasons may lead to the problem of finding a suitable time period to identify an alternate mode of operation

Method used

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  • Methods and apparatus for alternative mode monitoring
  • Methods and apparatus for alternative mode monitoring
  • Methods and apparatus for alternative mode monitoring

Examples

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Embodiment Construction

[0045]In summary, we will describe a method to support alternate mode monitoring for terminals currently operating in dedicated data transfer mode but capable of multi-mode operation. For the sake of simplicity, we will assume that the WLAN access point (AP) or designated central controller (CC) cannot provide any support for alternate mode monitoring, so it seems that basic normal operation and packet exchange with the mobile terminal (MT) must be considered . That is, it will be assumed that the AP does not perform time allocation between data transactions where the MT reconfigures to an alternate mode of operation.

[0046] According to this method, the MT recognizes the need to search for an alternate mode of operation while operating as a "busy" time division duplex (TDD) WLAN without an immediate "idle" period in which the search is otherwise performed, e.g. during the implementation of video streaming . The search for an alternate mode of operation is preferably perfo...

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Abstract

The invention relates to methods and apparatus for alternative mode monitoring in a communications system, particularly a wireless communications network. A method of alternative mode monitoring in a communications system is described. The communications system includes a network communications access point and a terminal coupled to said access point for data communication between said terminal and said access point, one mode of said data communication comprising communicating data in tranches, transmission of a tranche of data from one of said access point and said terminal to the other of said access point and said terminal being acknowledged by an acknowledgement signal sent in reply. The method comprises suppressing said acknowledgement signal using said terminal, and reconfiguring said terminal to monitor an alternative mode of said data communication during a period when said acknowledgement signal would otherwise have been sent. Suppressing the acknowledgement signal allows reconfigurable operation of busy wireless data transfer systems with little disruption to network operation.

Description

technical field [0001] The present invention relates to a method and an arrangement for alternative mode monitoring in a communication system, in particular a wireless communication network. Background technique [0002] Figure 1A A representative wireless LAN (Local Area Network) 10 is shown, as illustrated for a Hiperlan / 2 based system. The network comprises a number of mobile terminals (MT, Mobile Terminal) 12, each in radio communication with an access point (AP, Access Point) 14 or base station of the network. The access point 14 also communicates with a central controller (CC, Central Controller) 16, which in turn may have links 18 to other networks, such as fixed Ethernet LANs. In some cases, e.g. in Hiperlan / 2 networks without local access points, one of the mobile terminals 12 may assume the role of access point / central controller to allow direct MT-to-MT links, e.g. by radio link 20 is shown by way of example. [0003] In this specification, description will be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04L1/20H04L12/28H04L47/32
CPCH04L47/323H04W88/06H04L47/10H04L47/14H04L43/00H04L41/00H04L1/1854H04L41/5003H04L12/24H04L41/5025H04L41/08H04L12/2602H04L1/20H04W28/02H04W8/04
Inventor 克里斯托弗·M.·西蒙兹拉塞尔·J.·海恩兹迈克尔·P.·费顿
Owner KK TOSHIBA
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